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Excerpts downloaded on May 31, 1997 from the URLs given.

Pathological Incinerators are designed to consume Type IV waste.

This includes:

Human and animal remains, consisting of carcasses, organs and
solid wastes from hospitals, laboratories, abatoirs, animal pounds
and similar sources.

These waste consist of up to 85% moisture and 5% incombustible
solids with a heating value of 1000 BTUs per pound as fired.

Unlike the starved-air systems of Continual Burn and Batch Burn
Incinerators, Pathological Incinerators function on excess air.

This design parameter addresses the need to evaporate the majority
of the waste being destroyed, and it also permits the system to be
loaded during operation without risk of an environmental upset or
a disturbance in the combustion process.

The Pathological Incinerator also differs from other systems in
that the hearth is heated from combustion occuring within the
secondary chamber which is below the primary chamber. The heated
hearth allows for a better reduction of the oils and other liquids
emanating from the Type IV waste.

Waste can be loaded every 15 minutes at one fourth of the hourly
rated capacity. For example, a 200-pound-per-hour unit could be
loaded with approxiamtely 50 pounds of waste every 15 minutes.

The continual burn incinerator equipped  with an automatic feed
allows for the waste loading  at the rated capacity for up to 8
hours. A system  with the automatic ash removal feature increase
waste loading at the rated capacity up to 24 hours on a continual

In the Continual Feed process, waste is introduced into a charging
hopper either manually or by an automatic cart dumper. Then the
charging hopper door is closed, the primary chamber
refractory-lined gate is raised, and the waste is introduced into
the primary chamber by a hydraulic ram mechanism.

Next, the burning waste is moved through the primary chamber by a
charging ram and one or more ash pushers. They move the
steadily-reducing mass of waste to the end of the chamber. Then,
if the system is equipped with automatic ash removal, the ash
drops through a water seal into a water filled tank. From there it
is moved by either a drag conveyor, the Simonds proprietary "Ash
Sweep," or the Simonds "Ash Kicker," to a dumpster for removal
from the area. In systems not equipped the automatic ash removal,
the ash remains in the primary chamber until the system is cooled
down. It is them removed manually.

At or near capacity our continuous feed incinerators operate
without auxiliary fuel. Our systems maintain precise control over
the combustions process through a design which rigidly governs the
introduction of all air.

[Table deleted]

NOTE: The Continual burn procedure permits waste to be loaded
periodically at the rated capacity for a period of up to 8 hours.
If system is equipped with automatic ash removal, waste can be
loaded and burned up to 24 hours per day.

For more information email

1. Medical waste: any solid waste that is generated in the
diagnosis, treatment, or immunization of human beings or animals,
in research pertaining thereto, or in the production or testing of
biologicals. Biologicals means preparations made from living
organisms and their products, including vaccines, cultures, etc.,
intended for use in diagnosing, immunizing, or treating humans or
animals or in research pertaining thereto. The term medical waste
does not include any hazardous waste identified or listed under
Subtitle C of the Resource Conservation Recovery Act (RCRA), any
household waste as defined in regulations under Subtitle D of
RCRA, or any human or animal remains not generated as medical

2. Continuous MWI: a medical waste incinerator that is designed to
allow waste charging and ash removal during combustion

3. Intermittent MWI: a medical waste incinerator that is designed
to allow waste charging, but not ash removal during combustion

4. Batch MWI: a medical waste incinerator that is designed such
that neither waste charging nor ash removal can occur during

5. Pathological MWI: a medical waste incinerator that burns only
pathological waste (human or animal remains, anatomical parts,
and/or tissue), the bags/containers used to collect and transport
the waste and animal bedding.

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